RFC 5641 · PROPOSED STANDARD · 2009

Layer 2 Tunneling Protocol Version 3 Extended Circuit Status Values

Overview

RFC 5641, “Layer 2 Tunneling Protocol Version 3 Extended Circuit Status Values”, is a Proposed Standard document published in August 2009 by N. McGill, C. Pignataro. It updates RFC 3931, RFC 4349, RFC 4454, RFC 4591, RFC 4719. The canonical text is published by the RFC Editor.

Abstract

This document defines additional Layer 2 Tunneling Protocol Version 3 (L2TPv3) bit values to be used within the "Circuit Status" Attribute Value Pair (AVP) to communicate finer-grained error states for Attachment Circuits (ACs) and pseudowires (PWs). It also generalizes the Active bit and deprecates the use of the New bit in the Circuit Status AVP, updating RFC 3931, RFC 4349, RFC 4454, RFC 4591, and RFC 4719. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 5641 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
Other RFCs from 2009

Who Is Online

In total there are 65 users online: 0 registered, 57 guests and 8 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Majestic Other Bot PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372